Lake Brown Dam Reservoir Report
Nearby: Whitworth Lake Dam Horne Lake Dam
Last Updated: December 25, 2025
Lake Brown Dam, also known as Arnoname 73, is a private-owned structure located in Grant County, Arkansas.
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Summary
Completed in 1961, this earth dam stands at a structural height of 21 feet and serves primarily for recreation and water supply purposes. With a hydraulic height of 18 feet, the dam provides a maximum storage capacity of 60 acre-feet, with a normal storage level of 43 acre-feet.
Situated along the TOWN BRANCH-OS river, Lake Brown Dam offers a low hazard potential and has not been rated for its condition assessment. Despite being unregulated by the state, the dam remains a key feature in the region's water resource management. The dam's location in Sheridan, Arkansas, makes it a valuable asset for both recreational activities and water supply in the area.
Although Lake Brown Dam has not undergone recent inspections or assessments, its emergency preparedness plans are not rated, indicating a potential area for improvement in its risk management measures. However, with its capacity to store water for various purposes and its role in enhancing the local ecosystem, the dam remains a vital resource for water enthusiasts and climate advocates in the region.
Year Completed |
1961 |
Dam Length |
655 |
River Or Stream |
TOWN BRANCH-OS |
Primary Dam Type |
Earth |
Hydraulic Height |
18 |
Nid Storage |
60 |
Structural Height |
21 |
Hazard Potential |
Low |
Nid Height |
21 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Lake Brown Dam